110kV及220kV钢管塔输电线路带电作业安全距离试验
研究
潘志新;彭勇;薛凤华
【期刊名称】《华东电力》 【年(卷),期】2012(040)011
【摘要】钢管塔作为一种新型输电杆塔，已广泛应用于输电线路中，为给钢管塔带电作业提供理论指导，保证钢管塔线路带电作业的安全开展。针对带电作业时的各典型工作位置，通过1：1模拟杆塔试验得出了各工作位置的带电作业操作冲击放电特性，确定了110kV及220kV钢管塔线路带电作业最小安全距离，并通过钢管塔及普通角钢塔对比冲击放电试验，分析比较了两种间隙结构下的操作冲击放电特性。研究成果可为在110kV及220kV钢管塔线路上开展带电作业提供依据和技术支撑。%Steel tubular tower has been widely used as a new type of transmission tower. To provide theoretical guidance to live working of the steel tubular tower and ensure the safe for the live working on steel tubular tower transmission lines, the experiment investigation on minimum approach distance of live working was researched. By experiment on 1:1 ratio model tower, the switching impulse flashover characteristics of different typical live working position and the minimum approach distance for 110 kV and 220 kV steel tubular tower transmission line were obtained. And then by the contrast switching discharge experiment between steel tubular tower and general angle steel tower, the switc- hing impulse ilashover
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